首页|Multimodal MRI diagnosis and transvenous embolization of a basicranial emissary vein dural arteriovenous fistula:A case report
Multimodal MRI diagnosis and transvenous embolization of a basicranial emissary vein dural arteriovenous fistula:A case report
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A dural arteriovenous fistula(DAVF)is an abnormal linkage connecting the arterial and venous systems within the intracranial dura mater.A basicranial emissary vein DAVF drains into the cavernous sinus and the ophthalmic vein,similar to a cavernous sinus DAVF.Precise preoperative identification of the DAVF location is a prerequisite for appropriate treatment.Treatment options include microsurgical disconnection,endovascular transarterial embolization(TAE),transvenous embolization(TVE),or a combination thereof.TVE is an increasingly popular approach for the treatment of DAVFs and the preferred approach for skull base locations,due to the risk of cranial neuropathy caused by dangerous anastomosis from arterial approaches.Multimodal magnetic resonance imaging(MRI)can provide anatomical and hemodynamic information for TVE.The therapeutic target must be precisely embolized in the emissary vein,which requires guidance via multimodal MRI.Here,we report a rare case of successful TVE for a basicranial emissary vein DAVF,utilizing multimodal MRI assistance.The fistula had van-ished,pterygoid plexus drainage had improved,and the inferior petrosal sinus had recanalized,as observed on 8-month follow-up angiography.Symptoms and signs of double vision,caused by abduction deficiency,dis-appeared.Detailed anatomic and hemodynamic assessment by multimodal MRI is the key to guiding successful diagnosis and treatment.
Dural arteriovenous fistulaTransvenous embolizationMultimodal magnetic resonance imagingCortical venous refluxAngiography
Xi Chen、Liang Ge、Hailin Wan、Lei Huang、Yeqing Jiang、Gang Lu、Jing Wang、Xiaolong Zhang
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Department of Radiology,Huashan Hospital,Fudan University,Shanghai,China
National Natural Science Foundation of ChinaShanghai Pujiang Program
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